Nah, it was better than Prometheus, but I agree with you in that both films had similar issues. Both movies were beautifully filmed, and both had nice action sequences and effects, and both had great casts, but both suffered from story detail shortcomings that just brought the entire feel of the film down. Little details that could have been easily fixed with a little bit more work and thought, but would have gone a great way towards improving the stories.
I still hold hope that a 3+ hour directors cut of Man of Steel will come out on blu-ray, but it doesn't sound like that's a possibility.